

浏览全部资源
扫码关注微信
郑州大学土木工程学院,河南,郑州,450001
Published:2020
移动端阅览
张军锋,刘庆帅,杨军辉,涂保中.背景和共振分量在风振时频域计算中的分离方法[J].防灾减灾工程学报,2020,(3):365-371
ZHANG Junfeng. A Method of Separating the Background and Resonant Components of Wind Dynamic Effects in Time Domain[J]. 2020, (3): 365-371.
为深入分析结构风振响应时域计算结果,提出了一种在时域计算中分离背景和共振分量的方法。在结构动力响应频域和时域计算理论分析的基础上,分别以弹簧振子和悬臂杆件这两个单、多自由度结构的风振响应为例,通过时域计算对所提出的方法进行了验证,并与传统的频域结果进行了对比。经理论分析和单自由度算例验证对比,证实所提出的方法概念清晰且简单有效,可以从总动力响应时程中准确分离得到纯粹的共振响应时程,并且对多自由度结构也可得到准确的共振分量。另外,对风振计算中的背景和共振耦合分量也进行了分析。
To further interpret the dynamic results in time domain
a method of separating the background and resonant components in time domain is proposed. Based on the theory of dynamic calculation in frequency and time domains
the proposed method is examined through a SDOF oscillator and a MDOF cantilever beam under dynamic wind actions
and the results are also compared with those from the calculation in frequency domain. According to the theoretical analysis and example illustration
it is proved that with clear concept and simple application
the new method can separate the resonant component from the total dynamic responses precisely for MDOF structures. Moreover
the coupling component between the background and resonant components is also studied.
Clough R W,Penzien J.Dynamics of structures[M].3rd ed.Berkeley:Computers & Structures,2003.
Davenport A G.Gust loading factors[J].Journal of the Structural Division,1967,93(3):11-34.
Simiu E,Scanlan R H.Wind effects on structures:an introduction to wind engineering [M].New York:John Wiley & Sons Ltd,1978.
Simiu E,Scanlan R H.Wind effects on structures:fundamentals and applications to design[M].3rd ed.New York:John Wiley & Sons Ltd,1996.
Zhou Y,Kijewski T,Kareem A.Along-wind load effects on tall buildings:comparative study of major international codes and standards[J].Journal of Structural Engineering,2002,128(6):788-796.
建筑结构荷载规范:GB 50009—2012[S].北京:中国建筑工业出版社,2012.Load code for the design of building structures:GB 50009—2012[S].Beijing:China Architecture & Buil?ding Press,2012.(in Chinese)
张相庭.结构风工程 [M].北京:中国建筑工业出版社,2006.Zhang X T.Wind engineering of structures [M].Beijing:China Architecture & Building Press,2006.(in Chinese)
Holmes J D.Wind loadings of structures[M].3rd ed.Boca Raton:CRC Press,2005.
谢壮宁,倪振华,石碧青.大跨度屋盖结构的等效静风荷载[J].建筑结构学报,2007,28(1):113-118.Xie Zh N,Ni Zh H,Shi B Q.Equivalent static wind loads on large span roof structures [J].Journal of Buil?ding Structures,2007,28(1):113-118.(in Chinese)
Meirovitch L.Analytical methods in vibrations [M].London:Collier-Macmillan Company,1967.
Ke S T,Ge Y J,Zhao L,et al.A new methodology for analysis of equivalent static wind loads on super-large cooling towers [J].Journal of Wind Engineering and Industrial Aerodynamics,2012,111:30-39.
李寿科,李寿英,孙洪鑫.考虑背景共振耦合效应的完全三分量法在大跨屋盖风致响应中的应用[J].应用力学学报,2015,32(6):1 048-1 054,1 107.Li Sh K,Li Sh Y,Sun H X.Refined three-component method for determining wind induced responses of large span roofs [J].Chinese Journal of Applied Mechanics,2015,32(6):1 048-1 054,1 107.(in Chinese)
刘尚培,项海帆,谢霁明.风对结构的作用-风工程导论[M].上海:同济大学出版社,1992.Liu Sh P,Xiang H F,Xie J M.Wind effects on structures:an introduction to wind engineering [M].Shanghai:Tongji University Press,1992.(in Chinese)
陈波,武岳,沈世钊.大跨度屋盖结构等效静力风荷载中共振分量的确定方法研究[J].工程力学,2007,24(1):51-56.Chen B,Wu Y,Shen Sh Zh.Study of the resonant component of equivalent static wind loads on large span roofs [J].Engineering Mechanics,2007,24(1):51-56.(in Chinese)
张军锋,涂保中,刘庆帅,等.谐波合成法脉动风模拟时间步长的取值[J].重庆交通大学学报(自然科学版),2020,39(2):62-68.Zhang J F,Tu B Zh,Liu Q Sh,et al.Value of time step in the simulation of fluctuating wind field by weighted amplitude wave superposition method [J].Journal of Chongqing Jiaotong University(Natural Science),2020,39(2):62-68.(in Chinese)
董新胜,张军锋,杨洋,等.脉动风紊流度的相关参数分析[J].结构工程师,2019,35(3):115-160.Dong X Sh,Zhang J F,Yang Y,et al.Study on the parameters of turbulence intensity of fluctuating wind [J].Structural Engineers,2019,35(3):115-160.(in Chinese)
0
Views
420
下载量
0
CSCD
Publicity Resources
Related Articles
Related Author
Related Institution
苏公网安备32010202012147号